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  • springMVC注解及优化

    1. 新建web project

    2. 添加jar

    3. 改写web.xml, 注意spring-servlet.xml的名字 

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="3.0" 
    	xmlns="http://java.sun.com/xml/ns/javaee" 
    	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    	http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
      <display-name></display-name>	
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
      
      <servlet>
      	<servlet-name>springMVC</servlet-name>
      	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      	<init-param>
      		<param-name>contextConfigLocation</param-name>
      		<param-value>classpath*:config/springAnnotation-servlet.xml</param-value>
      	</init-param>
      	<load-on-startup>1</load-on-startup>
      </servlet>
      <servlet-mapping>
      	<servlet-name>springMVC</servlet-name>
      	<url-pattern>/</url-pattern>
      </servlet-mapping>
      
    </web-app>
    

     4. 写 springAnnotation-servlet.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"    
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:p="http://www.springframework.org/schema/p"    
        xmlns:context="http://www.springframework.org/schema/context"    
        xmlns:mvc="http://www.springframework.org/schema/mvc"    
        xsi:schemaLocation="     
               http://www.springframework.org/schema/beans     
               http://www.springframework.org/schema/beans/spring-beans-3.0.xsd     
               http://www.springframework.org/schema/context     
               http://www.springframework.org/schema/context/spring-context-3.0.xsd    
               http://www.springframework.org/schema/mvc     
               http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> 
        <!-- 注解扫描包 -->
        <context:component-scan base-package="com.tgb.web.controller.annotation" />        
        <!-- 开启注解 -->
        <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"></bean>
        <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"></bean>
        
        <!-- 静态资源访问 -->
        <mvc:resources location="/img/" mapping="/img/**"/>
        <mvc:resources location="/js/" mapping="/js/**"/>
        <mvc:resources location="/css/" mapping="/css/**"/>
       
        	
        <!-- ViewResolver 视图解析器 --> 
        <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"/> 
            <property name="suffix" value=".jsp"/> 
        </bean>
         
    </beans>
    

     5. 新建包 com.tgb.web.controller.annotation, 新建类userController.java

        注意加注解的方式, 类注解和方法注解

    package com.tgb.web.controller.annotation;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.servlet.ModelAndView;
    
    @Controller
    public class UserController {
    	@RequestMapping(value="/user/addUser", method=RequestMethod.GET)
    	public ModelAndView addUser(){
    		String result = "this is addUser---------";
    		return new ModelAndView("/annotation","result",result); 
    	}
    	@RequestMapping(value="/user/delUser", method=RequestMethod.GET)
    	public ModelAndView delUser(){
    		String result = "this is delUser---------";
    		return new ModelAndView("/annotation","result",result); 
    	}
    }
    

     6. 根据spring-servlet.xml设置, 在/WEB-INF/jsp/下新建  annotation.jsp  

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    
    
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <title>My JSP 'annotation.jsp' starting page</title>
      </head>  
      <body>	
    	  <h> annotation 注解1 </h> <br>
    	  <div>
    	      	${result }
    	  </div>
      </body>
    </html>
    

     

    7. IE端访问:     

    http://localhost:8080/springMVC3/user/addUser
    

    显示结果: 

    annotation 注解1  
    this is addUser--------- 
    

      

      

      

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  • 原文地址:https://www.cnblogs.com/wujixing/p/5600557.html
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